Drainage member serving as road curbstone and road drainage system
By designing a drainage component that also serves as a road curb, with a protrusion and multiple drainage pipes at the top of the main body, the problem of difficult-to-control drainage outlet location is solved, achieving fast and effective road drainage, simplifying the paving process, and improving driving comfort.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGZHOU MUNICIPAL ENG DESIGN & RES INST CO LTD
- Filing Date
- 2025-04-23
- Publication Date
- 2026-06-19
AI Technical Summary
In existing road drainage systems, the location of drainage outlets is difficult to control accurately, leading to serious water accumulation problems. Furthermore, increasing the density of drainage outlets will increase costs and affect driving comfort.
Designed as a drainage component that also serves as a road curbstone, the main body has a protruding part on one side of the upper end that acts as a curbstone, and multiple drainage pipes are installed inside and outside to form an integrated structure. A permeable layer is laid in the water collection groove to achieve rapid and effective drainage.
It simplifies the paving structure, improves drainage efficiency, reduces road water accumulation, ensures driving comfort, and eliminates the need for additional road curbs.
Smart Images

Figure CN224378633U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of road drainage technology, specifically relating to a drainage component that also serves as a road curb and a road drainage system. Background Technology
[0002] In the past, drainage pipes located on both sides of the road were usually buried under the roadbed, with drainage outlets only set on the road for drainage. The drainage components that make up the drainage pipes are usually conventional hollow columnar structures with a single function: drainage. When there are sidewalks or roadbeds that are higher than the road surface on both sides of the road, additional curb stones need to be laid between the lane and the sidewalk or roadbed (as shown in the previously disclosed Chinese patent CN208649830U), resulting in a complex road paving structure, a long process, and troublesome procedures.
[0003] Secondly, road surface drainage has always been an important issue in road construction. How to quickly and effectively drain rainwater after the road surface is hardened is not only related to the comfort and safety of driving on the road and the appearance of the city, but may even affect the safety of the road structure. In areas with heavy rainfall, road waterlogging is very common, especially in urban areas, where road waterlogging is a common concern because it is closely related to the public's safe and comfortable travel.
[0004] Currently, the common practice for road drainage is to install drainage outlets at regular intervals along the sides of the road. These outlets collect rainwater from the road surface and drain it through drainage pipes. This requires placing the drainage outlets in precisely the right locations, meaning that the elevation of the drainage outlets is lower than the elevation of the surrounding road surface. This is relatively easy to achieve during the design phase, but the problem lies in the actual implementation. Due to varying levels of construction control, the longitudinal and transverse slopes of the road often fail to meet the theoretical design specifications. Furthermore, settlement is common during the operation of the road system, causing the drainage outlets to no longer be located at the lowest point of the road surface area. Consequently, they fail to effectively perform their drainage function, leading to water accumulation on the road surface. Long-term water accumulation causes moisture to seep into the roadbed, softening the roadbed, increasing road settlement, and exacerbating water accumulation in the affected areas, further rendering the drainage outlets ineffective.
[0005] One way to solve the above problems is to increase the density of drainage outlets. This can improve drainage efficiency and prevent the outlets from failing even after road subsidence, thus preventing large-scale water accumulation on the road. However, this method cannot completely solve the water accumulation problem. In addition, increasing the number of drainage outlets will increase the cost, and the driving comfort at the drainage outlets will be extremely poor. Utility Model Content
[0006] The purpose of this utility model is to overcome the existing technical defects and provide a drainage component that can also be used as a road curb. By setting a protrusion on one side of the upper end of its main body as a curb, it has a dual function, which can both serve as a drainage function and be used as a road curb.
[0007] Firstly, in order to solve the above-mentioned technical problems, this utility model provides a drainage component that also serves as a road curbstone, including a main body, a drainage cavity provided inside the main body along its length, a water collection groove recessed at the upper end of the main body along its length, a plurality of first drainage pipes connecting the water collection groove and the drainage cavity, and a protrusion serving as a curbstone protruding along its length on one side of the upper end of the main body.
[0008] Furthermore, a water collection groove protrusion is provided along the length of the upper end of the main body on the side away from the protrusion, and the water collection groove is formed between the water collection groove protrusion and the protrusion, and the top surface of the protrusion is higher than the top surface of the water collection groove protrusion.
[0009] Furthermore, a plurality of second drainage pipes, arranged in a C-shape and spaced apart along the length of the inner side of the water collection groove protrusion and the drainage cavity, are provided between them.
[0010] Furthermore, a plurality of third drainage pipes are provided between the inner side of the protrusion and the drainage cavity, which are spaced apart along the length and are at right angles. The water inlet of the third drainage pipe located inside the protrusion is higher than the top surface of the water collection groove tenon.
[0011] Furthermore, a plurality of fourth drainage pipes, arranged at intervals along the length of the protrusion and in an S-shape or right angle, are connected between the outer side of the protrusion and the drainage cavity. The end of the fourth drainage pipe furthest from the drainage cavity is the water inlet.
[0012] Furthermore, each drainage pipe has a permeable pipe cover at the inlet end away from the drainage chamber, which is preferably a grating or wire mesh.
[0013] Furthermore, the inner top of the protrusion has a rounded chamfered structure.
[0014] Secondly, this utility model also provides a road drainage system, including a first longitudinal drainage structure and a second longitudinal drainage structure buried on both sides of the road surface and extending along the length of the road. The first longitudinal drainage structure and the second longitudinal drainage structure are both continuously laid with drainage components as described in any one of the first aspects, and the drainage components in the first longitudinal drainage structure and the second longitudinal drainage structure are symmetrically arranged. The protrusions in the drainage components are located on the outer side, and a permeable layer is laid in the water collection groove.
[0015] Furthermore, both the first longitudinal drainage structure and the second longitudinal drainage structure are provided with a walkway on their outer sides. A drainage groove is formed between the walkway and the drainage component to expose the inlet of the fourth drainage pipe. A permeable layer is provided inside the drainage groove.
[0016] Furthermore, the permeable layer is asphalt concrete.
[0017] This utility model has the following beneficial effects:
[0018] (1) By setting a protrusion as a curbstone on one side of the upper part of the main body of the drainage component, it has a dual function. It can be used to carry out drainage function by utilizing the drainage pipe and the internal drainage cavity, and at the same time, the protrusion on the side can also be used as a road curbstone. That is, the drainage component and the road curbstone (i.e., curbstone) are integrated into a structure, which makes it convenient to form a drainage pipe system and a road curbstone structure at the same time after it is paved. There is no need to pave the road curbstone (i.e., curbstone) separately. Therefore, the integrated drainage component structure simplifies the paving structure and paving process and is convenient to lay.
[0019] (2) A water collection groove is set at the upper end of the main body of the drainage component along its length, so that a permeable layer can be laid at the water collection groove. The water on the road can permeate downward through the permeable layer and enter the drainage chamber through the drainage pipe. After the drainage component is continuously laid to form a road drainage system, drainage can be carried out on both sides of the road along the entire length of the road. Compared with the existing method of setting drainage outlets in the middle, it is less affected by road settlement and can achieve fast and effective drainage. It solves the problem of water accumulation caused by the inability to drain quickly or the location of the drainage outlet in a certain place not corresponding to the low point of the road. Moreover, without drainage outlets, the road surface is flat, which can effectively improve driving comfort.
[0020] (3) The drainage component can be mass-produced in the factory. It can be preferably made of economical reinforced concrete, or high-performance concrete or plastic according to actual needs. During on-site installation, it can be quickly installed by segment assembly.
[0021] (4) After the drainage components are installed, the road will still be paved with asphalt. The conventional asphalt concrete in the water collection groove of the drainage components will be replaced with a highly permeable permeable layer (such as permeable asphalt concrete) to achieve concealed drainage. The road drainage system is continuously arranged along both sides of the road, which can achieve efficient and rapid drainage of the entire area on both sides of the road. This drainage system does not require exposed drainage outlets or drainage manhole covers on the road. While achieving rapid drainage of the entire road area, it also ensures the comfort of driving, achieving multiple benefits.
[0022] (5) By setting a fourth drainage pipe on the outside of the protrusion and a permeable layer that works with the fourth drainage pipe on the sidewalk, the protrusion can serve as a drainage channel for the sidewalk while fulfilling the function of the road curbstone. This allows the drainage component and the road drainage system it forms to collect water flow from both the sidewalk and the roadway, thus achieving a composite function.
[0023] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and will become apparent from the description or may be learned by practice of the invention. Attached Figure Description
[0024] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, do not constitute an undue limitation of the present invention. In the drawings:
[0025] Figure 1 This is a cross-sectional schematic diagram of the drainage component that also serves as a road curb in the embodiment.
[0026] Figure 2 This is a schematic diagram of the road drainage system in Example 2;
[0027] Figure 3 This is a schematic diagram of the transverse cross-section of the road drainage system in Example 2;
[0028] Figure 4 This is a partial schematic diagram of the relationship between the drainage component and the sidewalk in Example 2;
[0029] Figure 5 for Figure 4 A schematic diagram showing the process after removing the permeable layer inside the drainage channel. Detailed Implementation
[0030] To better understand the technical content of this utility model, the following will further introduce and explain this utility model in conjunction with the accompanying drawings and specific embodiments. It should be noted that if there are descriptions such as "first" and "second" in the text, they are used to distinguish different components, etc., and do not represent the order of priority, nor do they limit "first" and "second" to be different types.
[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.
[0032] Example 1
[0033] like Figure 1As shown in this embodiment, a drainage component 100 that also functions as a road curbstone includes a main body 1 cast from reinforced concrete. The main body 1 has a drainage cavity 10 along its length, preferably circular or square, serving as a drainage channel. A water-collecting groove 11 is recessed along its length at the upper end of the main body 1. Several rows of first drainage pipes 12, spaced apart along the length of the water-collecting groove 11 and the drainage cavity 10, connect the two, facilitating the entry of water from outside the drainage component into the drainage cavity 10 through the first drainage pipes 12. A protruding portion 13, serving as a curbstone, protrudes along the length of one side of the upper end of the main body 1. In this structure, by providing a protruding portion serving as a curbstone on one side of the upper end of the drainage component, it achieves a dual function: it can utilize the drainage pipes and the internal drainage cavity for drainage, while the protruding portion on the side can also be used as a road curbstone. In other words, it combines the functions of a drainage component and a road curbstone. The integrated structure of the curbstone (i.e., the road edge stone) facilitates the simultaneous formation of a drainage pipe system and a roadside stone structure after its installation, eliminating the need for additional roadside stones (i.e., curbstones). Therefore, this integrated drainage component structure simplifies the paving structure and process, and is convenient to install. Secondly, a permeable layer (such as permeable asphalt concrete) can be laid at the water collection groove, allowing water on the road to permeate downwards through the permeable layer and enter the drainage chamber along the first drainage pipe. After the drainage component is continuously laid to form a road drainage system, drainage can be carried out on both sides of the road along the entire length of the road. Compared with the existing method of setting drainage outlets in the middle, it is less affected by road settlement and can achieve rapid and effective drainage. It solves the problem of water accumulation caused by the inability to drain water quickly or the misalignment of drainage outlets with the low point of the road in some areas. Moreover, without drainage outlets, the road surface is flat, which can effectively improve driving comfort.
[0034] In this embodiment, a water collection groove tenon 14 is provided along the length of the upper end of the main body 1 on the side away from the protrusion 13. A water collection groove 11 is formed between the water collection groove tenon 14 and the protrusion 13, and the top surface of the protrusion 13 is higher than the top surface of the water collection groove tenon 14, that is, the height of the protrusion 13 is higher than the height of the water collection groove tenon 14. In specific applications, conventional concrete or permeable asphalt concrete will also be laid at the top of the water collection groove tenon 14 and connected with the concrete on the road.
[0035] In one embodiment, a plurality of second drainage pipes 15, arranged in a C-shape and spaced apart along the length of the inner side of the water collection groove protrusion 14 and the drainage cavity 10, are provided. That is, water entering the water collection groove 11 can be discharged into the drainage cavity 10 through the first drainage pipe 12 in addition to being discharged into the drainage cavity 10 through the second drainage pipes 15 arranged on the side, thereby improving the drainage volume and drainage efficiency.
[0036] In one embodiment, a plurality of third drainage pipes 16, arranged at right angles and spaced along the length of the inner side of the protrusion 13, are connected to the drainage cavity 10. The inlet of the third drainage pipe 16 located inside the protrusion 13 is higher than the top surface of the water collection groove protrusion 14, and there is a certain height difference between the two. Thus, in practical applications, after a permeable layer (such as permeable asphalt concrete) is laid on the top surface of the water collection groove protrusion 14 and in the water collection groove 11, the inlet of the third drainage pipe 16 is higher than or flush with the surface of the permeable layer. This facilitates the drainage of water from the road surface into the drainage cavity 10 when there is heavy rain and the water cannot be completely and timely drained into the drainage cavity through the permeable layer. This further improves the drainage volume and drainage efficiency and reduces the problem of water accumulation.
[0037] In one embodiment, a plurality of fourth drainage pipes 17, arranged at intervals along the length of the protrusion 13 and in an S-shape or right angle, are connected between the outer side of the protrusion 13 and the drainage cavity 10. The end of the fourth drainage pipe 17 away from the drainage cavity 10 is the water inlet. The protrusion is used as a curb (i.e., roadside stone), that is, its outer side is the sidewalk or roadbed. Thus, the water on the sidewalk or roadbed can be discharged downward into the drainage cavity 10 by the fourth drainage pipes 17, so that the drainage component and the road drainage system formed therein can collect water flow from both the sidewalk and the roadway, thus realizing a composite function.
[0038] In one embodiment, each drainage pipe is provided with a permeable pipe cover 18 at the water inlet at the end away from the drainage chamber 10, through which water is supplied. The permeable pipe cover 18 is preferably a grid or wire mesh, used to prevent particles from entering the drainage pipe and causing blockage during asphalt concrete paving.
[0039] In one embodiment, the inner top of the protrusion 13 has a rounded chamfered structure.
[0040] In other embodiments, when the drainage components are made by pouring concrete, a water collection pipe is pre-installed at the location corresponding to each drainage pipe, thereby forming the required drainage pipes using the installed water collection pipes.
[0041] In other embodiments, when prefabricating drainage components, a water collection pipe needs to be installed at intervals of 0.2 to 0.6 m, that is, the interval between drainage pipes is 0.2 to 0.6 m.
[0042] In other embodiments, the length of a single drainage component can be 1 to 10 m. When the installation is mainly done manually, the smaller value is used for the segments; when the installation is mainly done mechanically, the prefabricated length of the drainage component can be larger. The size of the drainage cavity in the drainage component can be adjusted appropriately according to the drainage volume requirements.
[0043] In other embodiments, the drainage components may also be made of other materials with sufficient strength (such as steel fiber reinforced concrete).
[0044] Example 2
[0045] like Figures 1 to 5 As shown in this embodiment, a road drainage system includes a first longitudinal drainage structure 101 and a second longitudinal drainage structure 102 buried on both sides of the road surface and extending along the length of the road. Both the first longitudinal drainage structure 101 and the second longitudinal drainage structure 102 are continuously laid using drainage components 100 as described in Embodiment 1. The drainage components 100 in the first longitudinal drainage structure 101 and the second longitudinal drainage structure 102 are arranged symmetrically on the left and right. The protrusions 13 in the drainage components 100 are located on the outer side, that is, the part between the protrusions on both sides is the road part. A permeable layer 103 is laid in the water collection groove and on the top surface of the water collection groove tenon 14. The height of the inlet of the third drainage pipe 16 is higher than or flush with the surface of the permeable layer 103 in the water collection groove.
[0046] In one embodiment, a walkway 104 is provided on the outer side of both the first longitudinal drainage structure 101 and the second longitudinal drainage structure 102. A drainage groove 105 is formed between the walkway 104 and the drainage member 100 to expose the inlet of the fourth drainage pipe 17. A permeable layer 103 is provided in the drainage groove 105, so that water on the walkway can permeate downward through the permeable layer and be discharged into the first drainage chamber from the fourth drainage pipe 17.
[0047] In one embodiment, the roadbed 108 between the two drainage components is paved with an asphalt layer 106 that is connected to the permeable layer 103, and the road between the two drainage components is arc-shaped with a high middle and low sides; the roadbed surface of the sidewalk 104 is paved with a brick layer 107 or an asphalt layer, and a drainage groove 105 is formed between the brick layer and the protrusion 13, and the surface of the brick layer is flush with or slightly higher than the top surface of the protrusion, so that the outer side of the sidewalk and the protrusion form a certain angle, which facilitates the flow of water on the sidewalk to the permeable layer at the drainage groove 105, and after penetrating downward, it enters the drainage chamber 10 through the fourth drainage pipe 17.
[0048] In other embodiments, the permeable layer 103 is asphalt concrete (i.e., permeable asphalt concrete).
[0049] In other embodiments, the construction steps of the road drainage system are as follows:
[0050] Step 1: Prefabricate drainage components that also serve as road curbs in the factory according to the design dimensions. When casting and manufacturing the drainage components, pre-bury water collection pipes at the locations corresponding to each drainage pipe, thereby using the buried water collection pipes to form the required drainage pipes.
[0051] Step 2: Compact the road base and mark the locations for the installation of drainage components on both sides of the road;
[0052] Step 3: Bury drainage components at the designated locations to form the first longitudinal drainage structure and the second longitudinal drainage structure;
[0053] Step 4: Construct the roadbed structure and sidewalk roadbed structure (i.e., pour concrete layers, etc.). Pour asphalt pavement layers on the surface of the roadbed structure in sections and areas and cure them. Lay stone brick layers or pour asphalt layers on the surface of the sidewalk roadbed structure and cure them. Pour permeable layers in the drainage grooves, water collection grooves and the top surface of the water collection groove protrusions.
[0054] The technical solutions provided by the embodiments of this utility model have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of the embodiments of this utility model. The description of the above embodiments is only for helping to understand the principles of the embodiments of this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the embodiments of this utility model. Therefore, the content of this specification should not be construed as a limitation of this utility model.
Claims
1. A drainage component that also serves as a road curbstone, characterized in that, The device includes a main body, the interior of which has a drainage cavity along its length, the upper end of which has a water collection groove along its length, and a plurality of first drainage pipes connecting the water collection groove and the drainage cavity. The upper end of the main body has a protruding part along its length that serves as a curb stone.
2. The drainage component as described in claim 1, characterized in that, A water collection groove protrusion is provided along the length of the upper end of the main body on the side away from the protrusion. The water collection groove is formed between the water collection groove protrusion and the protrusion, and the top surface of the protrusion is higher than the top surface of the water collection groove protrusion.
3. The drainage component as described in claim 2, characterized in that, The inner side of the water collection groove tenon is connected to the drainage cavity, and a number of second drainage pipes are provided at intervals along its length.
4. The drainage component as described in claim 3, characterized in that, A plurality of third drainage pipes are provided between the inner side of the protrusion and the drainage cavity, and the water inlet of the third drainage pipe located inside the protrusion is higher than the top surface of the water collection groove tenon.
5. The drainage component according to any one of claims 1-4, characterized in that, A plurality of fourth drainage pipes are provided between the outer side of the protrusion and the drainage cavity, and the end of the fourth drainage pipe away from the drainage cavity is the water inlet.
6. The drainage component as described in claim 5, characterized in that, Each drainage pipe has a permeable pipe cover at the inlet end away from the drainage chamber, allowing water to pass through.
7. The drainage component as described in claim 6, characterized in that, The inner top of the protrusion has a rounded chamfered structure.
8. A road drainage system, characterized in that, The system includes a first longitudinal drainage structure and a second longitudinal drainage structure buried on both sides of the road surface and extending along the length of the road. Both the first longitudinal drainage structure and the second longitudinal drainage structure are continuously laid using drainage components as described in any one of claims 5-7. The drainage components in the first longitudinal drainage structure and the second longitudinal drainage structure are symmetrically arranged. The protrusions in the drainage components are located on the outer side, and a permeable layer is laid in the water collection groove.
9. The road drainage system as described in claim 8, characterized in that, Both the first longitudinal drainage structure and the second longitudinal drainage structure have sidewalks on their outer sides. A drainage groove is formed between the sidewalk and the drainage component to expose the inlet of the fourth drainage pipe. A permeable layer is provided inside the drainage groove.
10. The road drainage system as described in claim 9, characterized in that, The permeable layer is permeable asphalt concrete.
Citation Information
Patent Citations
Firm type town road permeable pavement structure
CN208649830U